Hi, our site is using newest version of WHM Cpanel on Centos 7 Server. We have had a problem. When plugins go to create the thumbnails like Classifieds Pro and Catalog it does not work. Well it does and then it does not. The minute we restart the server it works. Then you will go back 5 minutes later, go to create a new one and the images are there, but it never creates the thumbnail. I thought maybe GD Library, but we have the latest version and well it would not work at all if it was GD Library. I have ran out of all ideas and thoughts. I noticed since I moved over to dedicated two problems, this one and YouTube api not loading in Extended questions and answers. Somehow I know maybe these are connected to an overall issue. I am out of ideas though. We made sure all the required php modules are enabled, every thing in Apache is enabled that should be. We were going to maybe try downgrading to Centos 6, but I am wondering it is something small I am missing. Would welcome any help or advice :) 

https://gyazo.com/3b02020940c78d05c0f0bb4221658746 -Thumbnail Not Loaded

https://gyazo.com/3b02020940c78d05c0f0bb4221658746 -PHP InI Features Enabled

https://gyazo.com/3b02020940c78d05c0f0bb4221658746 -Apache Configuration

https://gyazo.com/937d2c092c074a64fbc9eb1162cab1ff -Thumbnail Not Loaded Debug Error

And here is my .htaccess because I thought maybe that was the problem to. All permissions are as they should be. Keep in mind that the problem goes away after server reboot. 

https://gyazo.com/c918799cb10d339fb5426214c0051893

This is why I am lost. Its sad when I was on shared hosting never a problem. We have went through days trying to figure this out!

Also all these things get a green Check of things we checked: 

• Linux/Unix/Windows
• Apache 2 or higher with:
  • mod_rewrite on
  • mod_security (strict configurations) off
• PHP 5.5 and 5.6 with:
  • cURL on
  • fopen on
  • register_globals off
  • safe_mode off
  • suPHP off
  • suApache off
  • suhosin off
• PHP modules:
  • PDO
  • DOM
  • mbstring
  • zip
  • zlib
  • ftp
  • json
  • php_openssl
• MySQL from 5.0 to 5.7
• GD Library 2 with FreeType support
• Mail server (SendMail, Exim or other)
• Cron

<update> I just went back into site after a bath and the thumbnail finally loaded. Im wonderign if it is Centos 7 that's the problem.